CN212111941U - Lens cone assembly, lens assembly, camera module and electronic equipment - Google Patents
Lens cone assembly, lens assembly, camera module and electronic equipment Download PDFInfo
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- CN212111941U CN212111941U CN202020669381.3U CN202020669381U CN212111941U CN 212111941 U CN212111941 U CN 212111941U CN 202020669381 U CN202020669381 U CN 202020669381U CN 212111941 U CN212111941 U CN 212111941U
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Abstract
The embodiment of the application discloses a lens barrel assembly, a lens assembly, a camera module and electronic equipment; the lens cone assembly comprises a first lens cone, wherein the outer wall surface of the image side end of the first lens cone is provided with a first positioning flange; the inner wall surface of the object side end of the second lens barrel is provided with a second positioning flange, and a through hole communicated with the second accommodating cavity is defined inside the second positioning flange; the first lens barrel is configured to be assembled with the second lens barrel, the image side end of the first lens barrel is located in the second accommodating cavity, the object side end of the first lens barrel is located outside the second accommodating cavity and located at the object side of the second lens barrel, the object side surface of the first positioning flange is abutted to the image side surface of the second positioning flange, and the first lens barrel can rotate around the optical axis of the second lens barrel relative to the second lens barrel. The embodiment of the application can realize the relative adjustment of the lens groups in the two lens barrels through the relative rotation of the two lens barrels, thereby improving the resolving power of the lens assembly.
Description
Technical Field
The present application relates to the field of optical technologies, and in particular, to a lens barrel assembly, a lens assembly, a camera module, and an electronic apparatus.
Background
In recent years, with the development of semiconductor technology, pixels of an image sensor are higher and higher, and the resolution of an optical lens matched with the image sensor is higher and higher. However, in order to achieve high pixel, the number of lenses included in the optical lens is increasing, and the increase in the number of lenses easily affects the success rate of assembling the optical lens. In the prior art, all lenses are required to be sequentially installed in the same lens barrel when the optical lens is assembled, so that the lenses are completely wrapped or even fixed by the lens barrel, and the influence caused by accumulated tolerance cannot be compensated by adjusting the gap, the eccentricity and the like between the lenses, so that a plurality of products with poor resolving power exist in the assembled optical lens.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a lens cone component, a lens component, a camera module and electronic equipment, and the relative adjustment of the lens group in two lens cones can be realized through the relative rotation of the two lens cones, so that the resolving power of the lens cone component is improved. The technical scheme is as follows;
in a first aspect, an embodiment of the present application provides a lens barrel assembly, including:
the first lens barrel defines a first accommodating cavity for arranging the first lens group, the outer wall surface of the image side end of the first lens barrel is provided with a first positioning flange, and the first positioning flange extends towards the direction departing from the optical axis of the first lens barrel; and
the second lens barrel defines a second accommodating cavity for arranging the second lens group, a second positioning flange is arranged on the inner wall surface of the object side end of the second lens barrel, the second positioning flange extends towards the direction close to the optical axis of the second lens barrel, and a through hole communicated with the second accommodating cavity is defined in the second positioning flange;
the first lens barrel is configured to be assembled with the second lens barrel, the image side end of the first lens barrel is located in the second accommodating cavity, the object side end of the first lens barrel is located outside the second accommodating cavity and located at the object side of the second lens barrel, the object side surface of the first positioning flange is abutted to the image side surface of the second positioning flange, and the first lens barrel can rotate around the optical axis of the second lens barrel relative to the second lens barrel.
The beneficial effects of the embodiment of the application are that: through being including a plurality of lens barrels with the lens barrel subassembly split, and all inject the chamber that holds that is used for installing lens group on every lens barrel, just so can install the lens of lens subassembly in the intracavity that holds of different lens barrels to the relative adjustment of the lens group in two lens barrels just can be realized to the relative rotation that makes two lens barrels, can promote the resolution power and the regulative mode of lens subassembly simple. The first lens barrel and the second lens barrel can be pre-positioned by arranging the first positioning flange and the second positioning flange, so that the first lens barrel and the second lens barrel can be adjusted within a certain range, the working difficulty during adjustment is reduced, and the time consumed by adjustment is shortened.
Furthermore, the sections of the second positioning flanges are all circular along the direction perpendicular to the optical axis of the second lens barrel;
when the first lens barrel is configured to be assembled with the second lens barrel, the first lens barrel can enter the second accommodating cavity from the image side of the second lens barrel, and the object side end of the first lens barrel can pass through the through hole from the second accommodating cavity.
The beneficial effects of the further scheme are as follows: the cross sections of the second positioning flanges are all arranged to be circular along the direction perpendicular to the optical axis of the second lens barrel, so that the second positioning flanges can more reliably limit the first positioning flanges in the second accommodating cavity. Of course, due to the limitation of the second positioning flange, the image side end of the first lens barrel cannot enter the second accommodating cavity from the object side of the second lens barrel when the first lens barrel is assembled with the second lens barrel, the first lens barrel should meet the requirement of entering the second accommodating cavity from the image side of the second lens barrel, and the object side end of the first lens barrel can pass through the through hole from the second accommodating cavity.
Furthermore, along the direction perpendicular to the optical axis of the second lens barrel, the sections of the second positioning flanges are all circular, the second positioning flanges are provided with first surfaces deviating from the inner wall surfaces of the object side ends of the second lens barrel, the first surfaces are provided with first grooves, and the first grooves penetrate through the object side surfaces of the second positioning flanges and the image side surfaces of the second positioning flanges;
when the first lens barrel is configured to be assembled with the second lens barrel, the image side end of the first lens barrel can penetrate through the through hole from the object side of the second lens barrel and is positioned in the second accommodating cavity, and the object side surface of the first positioning flange is abutted to the image side surface of the second positioning flange through relative rotation of the first lens barrel and the second lens barrel
The beneficial effects of the further scheme are as follows: through the arrangement, the image side end of the first lens barrel can enter the second accommodating cavity from the object side of the second lens barrel, so that the first lens comprising the first lens group and the first lens barrel and the second lens comprising the second lens group and the second lens barrel can be assembled together after being assembled respectively and independently, and the assembly stations of the first lens and the second lens can be separated, thereby simplifying each assembly station and reducing the requirements on assembly equipment or assembly workers. Meanwhile, if the first lens or the second lens has a problem, the first lens and the second lens are more convenient to disassemble and assemble.
Further, along the direction perpendicular to the optical axis of the first lens barrel, the section of the first positioning flange is a first section, and the first section is in a sector ring shape; the section of the first groove is a second section along the direction vertical to the optical axis of the second lens cone, and the second section is in a fan-ring shape;
wherein the central angle of the first section is theta 1, the central angle of the second section is theta 2, the outer diameter of the first section is R1, the outer diameter of the second section is R2, the inner diameter of the second section is R2, and theta 1, theta 2, R1, R2 and R2 satisfy the following relational expression:
θ1≤θ2；
r2<R1≤R2。
the beneficial effects of the further scheme are as follows: after the arrangement, when the first lens barrel and the second lens barrel are assembled, the image side end of the first lens barrel can penetrate through the through hole from the object side of the second lens barrel and is positioned in the second accommodating cavity.
Furthermore, the number of the first positioning flanges is multiple, the number of the first grooves is equal to that of the first positioning flanges, and the first grooves and the first positioning flanges are arranged in a one-to-one correspondence manner; or
The number of the first positioning flanges is four, and the four first positioning flanges are distributed on the outer wall surface of the image side end of the first lens barrel; the quantity of first recess equals with the quantity of first location flange, and first recess and first location flange one-to-one setting.
The beneficial effects of the further scheme are as follows: by providing a plurality of first positioning flanges, the abutment between the object side surface of the first positioning flange and the image side surface of the second positioning flange can be made more reliable.
Furthermore, the first positioning flange is provided with a second surface deviating from the outer wall surface of the image side end of the first lens barrel, and the distance between the second surface and the inner wall surface of the second lens barrel is 0.005 mm-0.1 mm along the direction perpendicular to the optical axis of the first lens barrel;
the second positioning flange is provided with a first surface deviating from the inner wall surface of the object side end of the second lens cone, and the distance between the first surface and the outer wall surface of the first lens cone is 0.005 mm-0.1 mm along the direction perpendicular to the optical axis of the second lens cone.
The beneficial effects of the further scheme are as follows: through the specific limitation on the distance between the second surface and the inner wall surface of the second lens barrel and the distance between the first surface and the outer wall surface of the first lens barrel, the first lens barrel and the second lens barrel can be ensured to have a large enough adjustable interval, and the miniaturization of the lens assembly can be realized.
Further, the first accommodating cavity comprises a first accommodating section, and the first accommodating section is used for installing at least one first lens in the first lens group; when the first lens barrel and the second lens barrel are assembled, the first accommodating section is located in the second accommodating cavity.
The beneficial effects of the further scheme are as follows: because the inner diameter size that the first section of holding is compared with the inner diameter size that the second held the chamber and is little, so install the size that can be littleer of the lens of the first section of holding, manufacturing cost can be lower, through above-mentioned setting, can reduce the quantity that is located the lens of the thing side end of second lens cone in the second lens group, and increase the quantity of first lens in the first lens group to make the first section of holding can install more lenses.
In a second aspect, embodiments of the present application provide a lens assembly, including any of the lens barrel assemblies described above;
the first lens group comprises at least one first lens and is arranged in a first accommodating cavity of a first lens barrel of the lens barrel assembly; and
and the second lens group comprises at least one second lens and a second accommodating cavity arranged in a second lens barrel of the lens barrel assembly.
The beneficial effects of the embodiment of the application are that: through being including a plurality of lens barrels with the lens barrel subassembly split, and all inject the chamber that holds that is used for installing lens group on every lens barrel, just so can install the lens of lens subassembly in the intracavity that holds of different lens barrels to the relative adjustment of the lens group in two lens barrels just can be realized to the relative rotation that makes two lens barrels, can promote the resolution power and the regulative mode of lens subassembly simple. The first lens barrel and the second lens barrel can be pre-positioned by arranging the first positioning flange and the second positioning flange, so that the first lens barrel and the second lens barrel can be adjusted within a certain range, the working difficulty during adjustment is reduced, and the time consumed by adjustment is shortened.
Further, the object side face of the second lens group is a third surface, and the lens assembly further comprises:
and the shading sheet is attached to the third surface, the object side surface of the shading sheet is a fourth surface, and the orthographic projections of the outer wall surface of the image side end of the first lens barrel and the inner wall surface of the object side end of the second lens barrel on the fourth surface are both positioned in the fifth surface.
The beneficial effects of the further scheme are as follows: through the arrangement, stray light can be reduced or even prevented from entering the lens cone through the joint of the first lens cone and the second lens cone, and the imaging quality of the camera assembly can be improved.
Furthermore, the image side surface of the first lens group is a fifth surface, and the fifth surface is provided with a first connecting structure;
the object side surface of the second lens group is a third surface, the third surface is provided with a second connecting structure, and the first connecting structure is connected with the second connecting structure and can rotate around the optical axis of the second lens cone relative to the second connecting structure.
The beneficial effects of the further scheme are as follows: through the arrangement, the first lens comprising the first lens group and the first lens barrel and the second lens comprising the second lens group and the second lens barrel can realize pre-positioning through the first connecting structure and the second connecting structure when being installed, so that the working difficulty during adjustment is reduced.
Furthermore, the first connecting structure is an annular bulge arranged on the fifth surface, the annular bulge extends towards the direction far away from the object side surface of the first lens group, and the central axis of the annular bulge is collinear with the optical axis of the first lens cone;
the second connecting structure is an annular groove formed in the third surface, the annular groove is recessed towards the direction close to the image side surface of the second lens group, and the central axis of the annular groove is collinear with the optical axis of the second lens cone.
The beneficial effects of the further scheme are as follows: through setting up first connection structure as the annular bulge, second connection structure sets up to the ring channel, can make first connection structure and second connection structure be connected the back, and the prepositioning of first camera lens and second camera lens is more reliable. By defining the central axis of the annular protrusion to be collinear with the optical axis of the first lens cone and the central axis of the annular groove to be collinear with the optical axis of the second lens cone, after the annular protrusion is connected with the annular groove, in the process that the first lens cone rotates relative to the second lens cone, the distance between the optical axis of the first lens cone and the optical axis of the second lens cone cannot change greatly.
Further, the edge area of the third surface is recessed to form a step, the step is provided with a step surface facing the fifth surface and a first inner circumferential surface connecting the step surface and the third surface, and the step surface, the first inner circumferential surface and the inner wall surface of the second lens barrel are encircled to form an annular groove.
The beneficial effects of the further scheme are as follows: only through forming the step at the third surface, just can form the ring channel on second lens group for the processing technology of second lens group is simpler, can reduction in production cost.
Further, the surface of the annular protrusion, which is away from the fifth surface, abuts against the step surface, and the distance between the image side surface of the first positioning flange and the step surface is 0.005mm to 0.3mm along the direction parallel to the optical axis of the second lens barrel.
The beneficial effects of the further scheme are as follows: through the specific limitation on the distance between the image side surface of the first positioning flange and the step surface, the distance between the first positioning flange and the step surface can be realized, so that the first lens barrel and the second lens barrel cannot be prevented from being adjusted, and the lens assembly can be miniaturized.
In a third aspect, an embodiment of the present application provides a camera module, including any of the lens assemblies described above.
The beneficial effects of the embodiment of the application are that: through being including a plurality of lens barrels with the lens barrel subassembly split, and all inject the chamber that holds that is used for installing lens group on every lens barrel, just so can install the lens of lens subassembly in the intracavity that holds of different lens barrels to the relative adjustment of the lens group in two lens barrels just can be realized to the relative rotation that makes two lens barrels, can promote the resolution power and the regulative mode of lens subassembly simple. The first lens barrel and the second lens barrel can be pre-positioned by arranging the first positioning flange and the second positioning flange, so that the first lens barrel and the second lens barrel can be adjusted within a certain range, the working difficulty during adjustment is reduced, and the time consumed by adjustment is shortened.
In a fourth aspect, an embodiment of the present application provides an electronic device, which includes the above-mentioned camera module.
The beneficial effects of the embodiment of the application are that: through being including a plurality of lens barrels with the lens barrel subassembly split, and all inject the chamber that holds that is used for installing lens group on every lens barrel, just so can install the lens of lens subassembly in the intracavity that holds of different lens barrels to the relative adjustment of the lens group in two lens barrels just can be realized to the relative rotation that makes two lens barrels, can promote the resolution power and the regulative mode of lens subassembly simple. The first lens barrel and the second lens barrel can be pre-positioned by arranging the first positioning flange and the second positioning flange, so that the first lens barrel and the second lens barrel can be adjusted within a certain range, the working difficulty during adjustment is reduced, and the time consumed by adjustment is shortened.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a lens barrel assembly according to an embodiment of the present application;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is an exploded schematic view of FIG. 1;
fig. 5 is another schematic cross-sectional view of a lens barrel assembly according to an embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a lens barrel assembly according to an embodiment of the present application;
fig. 7 is a schematic cross-sectional view of a lens barrel assembly according to an embodiment of the present application;
fig. 8 is a schematic perspective view of a lens barrel assembly according to an embodiment of the present application, and the first positioning flange is located in the first groove;
fig. 9 is a schematic perspective view of the other state of fig. 8, specifically, a schematic perspective view of the object-side surface of the first positioning flange abutting against the image-side surface of the second positioning flange;
FIG. 10 is a top view of FIG. 9;
FIG. 11 is a schematic cross-sectional view taken along line B-B of FIG. 9;
FIG. 12 is a schematic cross-sectional view taken along line C-C of FIG. 9;
FIG. 13 is an exploded schematic view of FIG. 8;
FIG. 14 is an enlarged schematic view of the structure at P in FIG. 3;
fig. 15 is a schematic structural diagram of a lens module according to an embodiment of the present disclosure;
FIG. 16 is an enlarged schematic view of the structure at Q in FIG. 15;
fig. 17 is a schematic structural diagram of a first lens in a lens module according to an embodiment of the present disclosure;
fig. 18 is a schematic structural diagram of a second lens in a lens module according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
In a first aspect, referring to fig. 1 to 9, an embodiment of the present application provides a lens barrel assembly 100. The lens barrel assembly 100 includes a first lens barrel 110 and a second lens barrel 120. The lens barrel assembly 100 is not limited to including only two lens barrels; for example, the lens barrel assembly 100 may further include a third lens barrel, a fourth lens barrel, and the like. Since the assembling manner between two adjacent lens barrels can be similar, the lens barrel assembly 100 in the embodiment of the present application is only exemplified by the first lens barrel 110 and the second lens barrel 120.
In order to enable the relative adjustment of the lenses by the rotational adjustment of the first barrel 110 relative to the second barrel 120 around the optical axis of the second barrel 120, so as to improve the resolution of the lens assembly 10, the lenses should be able to be mounted on both the first barrel 110 and the second barrel 120. That is, referring to fig. 3, the first barrel 110 defines a first receiving cavity 111 for disposing the first lens group 130, and the second barrel 120 defines a second receiving cavity 121 for disposing the second lens group 140.
To ensure that the rotational adjustment of the first barrel 110 relative to the second barrel 120 can realize the adjustment of the first lens group 130 in the first barrel 110 relative to the second lens group 140 installed in the second barrel 120, the first barrel 110 and the first lens group 130 may be fixed by dispensing, and the second barrel 120 and the second lens group 140 may be fixed by dispensing, and the like.
Of course, in order to make the relative adjustment range of the first barrel 110 and the second barrel 120 not too large, and not enlarge the workload during the relative adjustment, the first barrel 110 and the second barrel 120 may be connected in a pre-positioning manner first, and the relative adjustment is realized under the condition of the pre-positioning connection. The pre-positioning connection of the first barrel 110 and the second barrel 120 can be realized in any manner. The embodiment of the present application provides that the pre-positioning connection between the first barrel 110 and the second barrel 120 is realized by structural improvement on the image side end of the first barrel 110 and the object side end of the second barrel 120. Specifically, referring to fig. 3, an outer wall surface of the image-side end of the first barrel 110 is provided with a first positioning flange 112, and the first positioning flange 112 may be formed by extending an outer wall surface of the image-side end of the first barrel 110 in a direction away from the optical axis of the first barrel 110. The inner wall surface of the object-side end of the second barrel 120 is provided with a second positioning flange 122, and the second positioning flange 122 may be formed by extending the inner wall surface of the object-side end of the second barrel 120 toward the direction close to the optical axis of the second barrel 120. Of course, in order that the arrangement of the second positioning flange 122 does not affect the light entering the second barrel 120, the inside of the second positioning flange 122 should define a through hole 1221 communicating with the second accommodating chamber 121.
After the structure of the image side end of the first barrel 110 and the object side end of the second barrel 120 is modified, referring to fig. 3, after the first barrel 110 is configured to be assembled with the second barrel 120, the image side end of the first barrel 110 is located in the second accommodating cavity 121, the object side end of the first barrel 110 is located outside the second accommodating cavity 121 and on the object side of the second barrel 120, the object side surface of the first positioning flange 112 abuts against the image side surface of the second positioning flange 122, and the first barrel 110 can rotate around the optical axis of the second barrel 120 relative to the second barrel 120. At this time, the first barrel 110 and the second barrel 120 are pre-positioned by the abutment of the object side surface of the first positioning flange 112 and the image side surface of the second positioning flange 122, so that the first barrel 110 can be rotationally adjusted within a certain range relative to the second barrel 120 under the condition that the first positioning flange 112 and the second positioning flange 122 abut against each other.
In order to further improve the resolving power of the lens assembly 10, in addition to the first barrel 110 being rotatable relative to the second barrel 120 around the optical axis of the second barrel 120, the first barrel 110 may also be adjusted in inclination and translation relative to the second barrel 120, so as to achieve the eccentricity, inclination, or gap calibration of the lens assembly 10 including the first barrel 110 and the second barrel 120.
The object-side surface of the first positioning flange 112 and the image-side surface of the second positioning flange 122 may both be planes, the object-side surface of the first positioning flange 112 may be perpendicular to the optical axis of the first barrel 110, and the image-side surface of the second positioning flange 122 may be perpendicular to the optical axis of the second barrel 120. Of course, in order to enable the first barrel 110 to rotate relative to the second barrel 120, and to further enable the tilt adjustment of the first barrel 110 relative to the second barrel 120, one of the object-side surface of the first positioning flange 112 and the image-side surface of the second positioning flange 122 may be a non-planar surface; or, the object-side surface of the first positioning flange 112 is a plane perpendicular to the optical axis of the first barrel 110, and the image-side surface of the second positioning flange 122 is a plane not perpendicular to the optical axis of the second barrel 120; or, the object-side surface of the first positioning flange 112 is a plane not perpendicular to the optical axis of the first barrel 110, and the image-side surface of the second positioning flange 122 is a plane perpendicular to the optical axis of the second barrel 120.
The image-side end of the first barrel 110 is an end of the first barrel 110 close to the imaging surface. Specifically, a first reference surface may be disposed between the image-side surface and the object-side surface of the first barrel 110, and the image-side end of the first barrel 110 may be a portion of the first barrel 110 located between the image-side surface and the first reference surface. It should be noted that the first reference surface may be a step surface provided on the first barrel 110. Of course, the first reference surface may not be disposed on the first barrel 110, and a cross section of the first barrel 110 along a certain direction may be defined as the first reference surface. The object side end of the first barrel 110 is an end of the first barrel 110 away from the imaging surface. Specifically, a second reference surface may be disposed between the image side surface and the object side surface of the first barrel 110, and the object side end of the first barrel 110 may be a portion of the first barrel 110 located between the object side surface and the second reference surface. The second reference surface may be the same as the first reference surface, and the second reference surface may be on an object side of the first reference surface. It should be noted that the second reference surface may be a step surface provided on the first barrel 110. Of course, the second reference surface may not be disposed on the first barrel 110, and a cross section of the first barrel 110 along a certain direction may be defined as the second reference surface.
The object side end of the second barrel 120 is the end of the second barrel 120 that is away from the imaging surface. Specifically, a third reference surface may be disposed between the image side surface and the object side surface of the second barrel 120, and the object side end of the second barrel 120 may be a portion of the second barrel 120 located between the object side surface and the third reference surface. It should be noted that the third reference surface may be a step surface provided on the second barrel 120. Of course, the third reference surface may not be disposed on the second barrel 120, and a cross section of the second barrel 120 along a certain direction may be defined as the third reference surface.
In order to make the second positioning flange 122 more reliably limit the first positioning flange 112 in the second accommodating cavity 121, referring to fig. 1 to 4, the cross-sections of the second positioning flange 122 may be circular in a direction perpendicular to the optical axis of the second barrel 120. The cross sections of the second positioning flanges 122 are all arranged to be circular along the direction perpendicular to the optical axis of the second barrel 120, so that the second positioning flanges 122 can limit the first positioning flanges 112 in the direction of 360 degrees, and the first positioning flanges 112 can be better prevented from being separated from the second accommodating cavity 121. Of course, due to the limitation of the second positioning flange 122, the image-side end of the first barrel 110 when the first barrel 110 is assembled with the second barrel 120 cannot enter the second accommodating cavity 121 from the object side of the second barrel 120, the first barrel 110 should be able to enter the second accommodating cavity 121 from the image side of the second barrel 120, and the object-side end of the first barrel 110 can pass through the through hole 1221 from the inside of the second accommodating cavity 121.
If the first barrel 110 enters the second accommodating cavity 121 from the image side of the second barrel 120 and finally the object side end of the first barrel 110 is located outside the second accommodating cavity 121 and on the object side of the second barrel 120, the second lens group 140 should not be installed in the second accommodating cavity 121 before the first barrel 110 is installed in the second accommodating cavity 121. In order to solve the above problem, the lens assembly 10 of the present embodiment of the invention can further satisfy the requirement that the first lens barrel 110 can enter the second accommodating cavity 121 from the object side of the second lens barrel 120, so that the first lens 10a and the second lens 10b can be assembled together after being assembled independently.
Specifically, referring to fig. 8 to 13, along a direction perpendicular to the optical axis of the second barrel 120, the cross sections of the second positioning flanges 122 may be circular, the second positioning flanges 122 have first surfaces 1222 facing away from the inner wall surface of the object side end of the second barrel 120, the first surfaces 1222 are provided with first grooves 1222a, and the first grooves 1222a penetrate the object side surface of the second positioning flange 122 and the image side surface of the second positioning flange 122, so that when the first barrel 110 is configured to be assembled with the second barrel 120, the image side end of the first barrel 110 may pass through the through hole 1221 from the object side of the second barrel 120 and be located in the second accommodating cavity 121, and the object side surface of the first positioning flange 112 abuts against the image side surface of the second positioning flange 122 by relative rotation of the first barrel 110 and the second barrel 120. The image side end of the first lens barrel 110 enters the second accommodating cavity 121 from the object side of the second lens barrel 120, so that the first lens 10a and the second lens 10b can be assembled together after being assembled independently, and the assembly stations of the first lens 10a and the second lens 10b can be separated, thereby simplifying each assembly station and reducing the requirements on assembly equipment or assembly workers. Meanwhile, if the first lens 10a or the second lens 10b has a problem, the first lens 10a and the second lens 10b are more convenient to disassemble and assemble.
In order to assemble the first barrel 110 and the second barrel 120, the image-side end of the first barrel 110 can pass through the through hole 1221 from the object side of the second barrel 120 and be located in the second accommodating cavity 121, referring to fig. 8 to 13, the cross section of the first positioning flange 112 is a first cross section along a direction perpendicular to the optical axis of the first barrel 110, and the first cross section can be in a fan-ring shape. In a direction perpendicular to the optical axis of the second barrel 120,the cross section of the first groove 1222a is a second cross section, which may be in a fan-ring shape, and the central angle of the first cross section is θ 1, the central angle of the second cross section is θ 2, the outer diameter of the first cross section is R1, the outer diameter of the second cross section is R2, the inner diameter of the second cross section is R2, and θ 1, θ 2, R1, R2, R2 satisfy the following relations: theta1≤θ2；r2<R1≤R2. After the above arrangement, when the first barrel 110 and the second barrel 120 are assembled, the image side end of the first barrel 110 can pass through the through hole 1221 from the object side of the second barrel 120, as shown in fig. 8; and is located in the second receiving cavity 121, as can be seen in fig. 9. The first section comprises a first arc line, a second arc line, a first side line and a second side line, the radius of the first arc line is larger than that of the second arc line, the first side line passes through the circle center of the first section and is connected with the first end of the first arc line and the first end of the second arc line. The second side line passes through the center of the first section and is connected with the second end of the first arc line and the second end of the second arc line. The central angle of the first section is an included angle between the first sideline and the second sideline. The outer diameter of the first cross section is the radius of the first arc. The second section includes third pitch arc, fourth pitch arc, third sideline and fourth sideline, and the radius of third pitch arc is greater than the radius of fourth pitch arc, and the centre of a circle of third section is passed through to the third sideline, and connects the first end of third pitch arc and the first end of fourth pitch arc. The fourth arc line passes through the center of the second section and is connected with the second end of the third arc line and the second end of the fourth arc line. The central angle of the second section is an included angle between the third sideline and the fourth sideline. The outer diameter of the second cross section is the radius of the third arc. The inner diameter of the second cross-section is the radius of the fourth arc.
Meanwhile, regarding fig. 5, when the outer diameter of the outer wall surface of the first barrel 110 is larger than the partial inner diameter of the inner wall surface of the second barrel 120, the first barrel 110 cannot enter the second accommodation chamber 121 from the image side of the second barrel 120, and it is possible to adopt the first barrel 110 entering the second accommodation chamber 121 from the object side of the second barrel 120. At this time, in order to avoid the large opening on the object side surface of the first lens barrel 110 and the possibility of stray light entering, a light shielding sheet may be disposed on the object side surface of the first lens barrel 110; or, a third lens barrel is additionally disposed on the object side surface of the first lens barrel 110, and an opening on the object side surface of the third lens barrel is made smaller.
In order to make the second positioning flange 122 more reliably define the first positioning flange 112, the central angle of the first recess 1222a may be reduced, however, if the central angle of the first recess 1222a is too small, the central angle of the first positioning flange 112 may be too small, and if the central angle of the first positioning flange 112 is too small, the abutment between the first positioning flange 112 and the second positioning flange 122 may no longer be reliable, and in order to make the abutment between the first positioning flange 112 and the second positioning flange 122 reliable, and the second positioning flange 122 reliably defines the first positioning flange 112, the central angle of the first positioning flange 112 and the central angle of the first recess 1222a may be both 90 ° to 180 °.
Of course, in order to ensure the abutment of the second positioning flange 122 against the first positioning flange 112 and the definition of the second positioning flange 122 against the first positioning flange 112, referring to fig. 13, the number of the first positioning flanges 112 may be plural, the number of the first grooves 1222a is equal to the number of the first positioning flanges 112, and the first grooves 1222a are disposed in one-to-one correspondence with the first positioning flanges 112. The plurality of first positioning flanges 112 are preferably distributed on the outer wall surface of the image-side end of the first barrel 110. Specifically, the number of first locating flanges 112 may be two, three, four, five, etc. Preferably, the number of the first positioning flanges 112 is four, and the four first positioning flanges 112 may be distributed on the outer wall surface of the image-side end of the first barrel 110.
In order to make the definition of the first positioning flange 112 by the second positioning flange 122 reliable, referring to fig. 14, the thickness dimension h1 of the second positioning flange 122 may be 0.2mm to 5.2mm in a direction parallel to the optical axis of the second barrel 120. Specifically, the thickness dimension h1 of the second positioning flange 122 may be 1mm, 2mm, 3mm, 4mm, or the like, in a direction parallel to the optical axis of the second barrel 120.
Referring to fig. 6 and 7, the first receiving cavity 111 may include a first receiving section 1111 for receiving at least one first lens of the first lens set 130. When the first barrel 110 and the second barrel 120 are assembled, the first receiving section 1111 is located in the second receiving cavity 121. Since the inner diameter of the first receiving portion 1111 is smaller than that of the second receiving chamber 121, the size of the lens mounted on the first receiving portion 1111 can be smaller, and the manufacturing cost can be lower. Therefore, the number of lenses of the second lens group 140 at the object side end of the second lens barrel 120 can be reduced, and the number of first lenses of the first lens group 130 can be increased, so that more lenses can be mounted in the first accommodating section 1111.
The first lens of the first lens group 130 may be mounted to the first receiving section 1111 in its entirety or may be mounted to the first receiving section 1111 in part. Referring to fig. 6 and 7, when a first lens in the first lens group 130 is partially mounted in the first receiving section 1111, the first receiving cavity 111 may further include a second receiving section 1112 for mounting the remaining first lens in the first lens group 130, and when the first lens barrel 110 is assembled with the second lens barrel 120, the second receiving section 1112 is located outside the second receiving cavity 122.
In order to enable the first accommodating section 1111 to mount more lenses, the length of the first accommodating section 1111 in the direction perpendicular to the optical axis of the first barrel 110 may be larger, the length of the image side end of the first barrel 110 located in the second barrel 120 in the direction perpendicular to the optical axis of the first barrel 110 may also be larger, and when the length of the image side end of the first barrel 110 located in the second barrel 120 is larger, the first positioning flange 112 may be disposed on the entire length of the image side end of the first barrel 110 located in the second barrel 120; it may also be disposed on a part of the length of the first barrel 110 located at the image side end in the second barrel 120, as can be seen in fig. 6.
When the first positioning flange 112 is disposed on a length of a portion of the first barrel 110 located at the image-side end in the second barrel 120, a portion of the image-side end of the first barrel 110 where the first positioning flange 112 is not disposed may not be connected to the inner wall surface of the second barrel 120, as can be seen in fig. 6. Of course, in order to adjust the first barrel 110 relative to the second barrel 120 within a certain range, referring to fig. 7, the inner wall surface of the second barrel 120 may be further provided with an annular flange 123; at this time, to mount the first barrel 110 and the second barrel 120, the image-side end of the first barrel 110 needs to pass through the through hole 1221 from the object side of the second barrel 120 and be located in the second accommodating cavity 121.
To facilitate assembly of the first barrel 110 and the second barrel 120, referring to fig. 16, a distance h4 between an object side surface of the first barrel 110 and an image side surface of the second barrel 120 in a direction parallel to an optical axis of the first barrel 110 may be 0mm to 5 mm. Specifically, the distance h4 from the object side surface of the first barrel 110 to the image side surface of the second barrel 120 in a direction parallel to the optical axis of the first barrel 110 may be 1mm, 2mm, 3mm, 4mm, or the like.
To achieve miniaturization of the lens assembly 10, the thickness dimension of the lens barrel assembly 100 may be 2mm to 10mm in a direction parallel to the optical axis of the second lens barrel 120. Specifically, the thickness dimension of the lens barrel assembly 100 may be 3mm, 5mm, 7mm, 9mm, or the like in a direction parallel to the optical axis of the second lens barrel 120.
In a second aspect, referring to fig. 15, an embodiment of the present application provides a lens assembly 10, including any of the lens barrel assemblies 100, the first lens group 130, and the second lens group 140 described above. The first lens group 130 is disposed in the first accommodating cavity 111 of the first barrel 110 of the barrel assembly 100. The second lens group 140 is disposed in the second accommodating cavity 121 of the second barrel 120 of the barrel assembly 100.
The first lens group 130 includes at least one first lens, all the first lenses are installed in the first accommodating cavity 111, and all the first lenses can be sequentially arranged along the optical axis of the first barrel 110. The second lens group 140 includes at least one second lens, all the second lenses are installed in the second accommodating cavity 121, and all the second lenses can be sequentially arranged along the optical axis of the second barrel 120.
The maximum outer diameter of the first lens group 130 may be 1mm to 6 mm. Specifically, the maximum outer diameter of the first lens group 130 may be 2mm, 3mm, 4mm, 5mm, or the like. In order to stably fix the first lens group 130 in the first barrel 110, the maximum outer diameter of the first barrel 110 may be 2.5mm to 10mm, and the maximum outer diameter of the first barrel 110 is larger than the maximum outer diameter of the first lens group 130. Specifically, the maximum outer diameter dimension of the first barrel 110 may be 3mm, 5mm, 7mm, 9mm, or the like. Here, the maximum outer diameter of the first barrel 110 is the maximum outer diameter when the first positioning flange 112 is not provided on the outer wall surface of the image-side end of the first barrel 110.
Referring to fig. 16, the object-side surface of the second lens group 140 is a third surface 141. The third surface 141 may be located on one of all the second lenses, which is closest to the first lens group 130. In particular, the third surface 141 can be the object side surface of the second lens. In order to reduce or even prevent stray light from entering the second barrel 120 through the joint of the first barrel 110 and the second barrel 120 and improve the imaging quality of the camera head assembly, the lens assembly 10 may further include a light shielding sheet 10 c. The light-shielding sheet 10c may be attached to the third surface 141, an object-side surface of the light-shielding sheet 10c is a fourth surface 11c, and an orthographic projection of an outer wall surface of the image-side end of the first barrel 110 and an inner wall surface of the object-side end of the second barrel 120 on the fourth surface 11c may be located in the fourth surface 11 c.
In order to enable the first lens 10a including the first lens group 130 and the first barrel 110 and the second lens 10b including the second lens group 140 and the second barrel 120 to be pre-positioned during installation, thereby reducing the working difficulty during adjustment, the image side surface of the first lens group 130 is the fifth surface 131, the fifth surface 131 may be provided with a first connecting structure, the object side surface of the second lens group 140 is the third surface 141, the third surface 141 may be provided with a second connecting structure, and the first connecting structure is connected with the second connecting structure and can rotate around the optical axis of the second barrel 120 relative to the second connecting structure. In order to further improve the resolving power of the lens assembly 10, the first connecting structure can rotate around the optical axis of the second lens barrel relative to the second connecting structure, and the first connecting structure can also perform tilt and translation adjustment relative to the second connecting structure, so as to achieve the eccentricity, tilt or clearance calibration of the lens assembly 10.
In order to connect the first connecting structure and the second connecting structure and rotate around the optical axis of the second lens barrel 120 relative to the second connecting structure, the first connecting structure may be disposed in the second connecting structure, and the second connecting structure may also be disposed in the first connecting structure. The following description will be made in detail by taking the first connecting structure disposed in the second connecting structure as an example:
the first connection structure may be a circular protrusion provided at a middle portion of the fifth surface 131, and the second connection structure may be a circular groove provided at a middle portion of the third surface 141. In order to enable the first barrel 110 to smoothly rotate relative to the second barrel 120 after the circular protrusion is connected with the circular groove, the outer circumferential surface of the circular protrusion may be a cylindrical surface, and the inner circumferential surface of the circular groove may be a cylindrical surface matched with the outer circumferential surface of the circular protrusion. In order to enable the circular protrusion to be disposed in the circular groove, in a process that the first barrel 110 rotates relative to the second barrel 120, that is, in a process that the circular protrusion rotates relative to the circular groove, a distance between an optical axis of the first barrel 110 and an optical axis of the second barrel 120 does not change greatly, a central axis of the circular protrusion may be collinear with the optical axis of the first barrel 110, and a central axis of the circular groove may be collinear with the optical axis of the second barrel 120.
In order to ensure that the pre-positioning of the first lens barrel 10a and the second lens barrel 10b is more reliable after the first connecting structure and the second connecting structure are connected, referring to fig. 15 to 18, the first connecting structure may be an annular protrusion 1311 disposed on the fifth surface 131, and the annular protrusion 1311 extends in a direction away from the object-side surface of the first lens group 130. The second connecting structure may be an annular groove 1411 disposed on the third surface 141, and the annular groove 1411 is recessed toward the image side surface of the second lens group 140. All the cross sections of the annular protrusion 1311 in the direction perpendicular to the optical axis of the first barrel 110 are circular. All the cross sections of the annular groove 1411 in the direction perpendicular to the optical axis of the second barrel 120 are circular. In order to prevent the distance between the optical axis of the first barrel 110 and the optical axis of the second barrel 120 from changing greatly when the first barrel 110 rotates relative to the second barrel 120 after the annular protrusion 1311 is disposed in the annular groove 1411, that is, when the annular protrusion 1311 rotates relative to the annular groove 1411, the central axis of the annular protrusion 1311 may be collinear with the optical axis of the first barrel 110, and the central axis of the annular groove 1411 may be collinear with the optical axis of the second barrel 120.
Referring to fig. 17, the annular protrusion 1311 has a first circular ring surface 1311a facing away from the fifth surface 131, a second inner circumferential surface 1311b provided around an inner circle of the first circular ring surface 1311a, and a first outer circumferential surface provided around an outer circle of the first circular ring surface 1311 a. Referring to fig. 18, the annular groove 1411 has a second circular ring surface 1411a facing the fifth surface 131, a third inner circumferential surface 1411b disposed around an inner ring of the second circular ring surface 1411a, and a second outer circumferential surface disposed around an outer ring of the second circular ring surface 1411 a.
In order to enable the first barrel 110 to rotate smoothly relative to the second barrel 120 after the annular protrusion 1311 is connected to the annular groove 1411, the second inner circumferential surface 1311b of the annular protrusion 1311 may be a cylindrical surface, and referring to fig. 16, the second inner circumferential surface 1311b of the annular protrusion 1311 may also be a truncated cone-shaped surface with a radius gradually increasing from the fifth surface 131 to the third surface 141. When the second inner circumferential surface 1311b of the annular protrusion 1311 is a circular truncated cone-shaped surface, the third inner circumferential surface 1411b of the annular groove 1411 may be a circular truncated cone-shaped surface with a radius gradually increasing in a direction from the fifth surface 131 to the third surface 141, and the second inner circumferential surface 1311b is located on the outer circumference of the third inner circumferential surface 1411b, so that an included angle θ between a generatrix of the second inner circumferential surface 1311b and the optical axis of the first barrel 110 may be equal to an included angle between a generatrix of the third inner circumferential surface 1411b and the optical axis of the second barrel 120, for facilitating the detachment and installation of the annular protrusion 1311 and the annular groove 1411.
Referring to fig. 16, the angle θ between the generatrix of the second inner circumferential surface 1311b and the optical axis of the first barrel 110 may be 15 ° to 25 °. By defining the included angle θ between the generatrix of the second inner circumferential surface 1311b and the optical axis of the first barrel 110 to be 15 ° to 25 °, it is possible to prevent the annular protrusion 1311 from being separated from the annular groove 1411 due to an excessively large included angle, that is, the second inner circumferential surface 1311b is excessively inclined, and to ensure the reliability of connection between the annular protrusion 1311 and the annular groove 1411. Specifically, the angle θ between the generatrix of the second inner peripheral surface 1311b and the optical axis of the first barrel 110 may be 18 °, 20 °, 22 °, or the like.
The third inner peripheral surface 1411b may be entirely located within the second inner peripheral surface 1311b, see fig. 16. The third inner surface 1411b may also be partially located within the second inner circumferential surface 1311 b. To further ensure the reliability of the connection of the annular protrusion 1311 with the annular groove 1411, the length h5 of the connecting section in the generatrix direction of the third inner circumferential surface 1411b may be 0.03mm to 0.15mm, which defines the portion of the third inner circumferential surface 1411b located inside the second inner circumferential surface 1311b as a connecting section. Specifically, the length dimension h5 of the connection segment in the generatrix direction of the third inner peripheral surface 1411b may be 0.07mm, 0.1mm, or the like.
The annular groove 1411 may be formed by directly recessing the third surface 141 inward. Of course, in order to reduce the difficulty in molding the second lens group 140, referring to fig. 18, an edge region of the third surface 141 may be recessed to form a step, the step has a step surface facing the fifth surface 131 (see reference numeral 1411a) and a first inner circumferential surface (see reference numeral 1411b) connecting the step surface and the third surface 141, and the step surface, the first inner circumferential surface, and an inner wall surface of the second lens barrel 120 enclose to form the annular groove 1411. In this way, the annular groove 1411 can be formed on the second lens group 140 only by forming the step on the third surface 141 of the second lens group 140, so that the second lens group 140 has a simpler processing process and can reduce the production cost. The edge region of the third surface 141 may be a portion extending inward from an outer boundary line of the third surface 141 by a predetermined distance. The predetermined distance may be 0.6mm to 1.2 mm; specifically, the predetermined distance may be 0.8mm, 1.0mm, or the like.
In order to ensure the pre-positioning of the first lens 10a and the second lens 10b, the image-side surface of the first positioning flange 112 may abut against the step surface 1412, and the annular protrusion 1311 may abut against the annular groove 1411. Of course, in order to facilitate adjustment of the first barrel 110 with respect to the second barrel 120, only the annular protrusion 1311 and the annular groove 1411 may be disposed in abutment, and the image-side surface of the first positioning flange 112 and the step surface may be disposed with a gap therebetween. Specifically, referring to fig. 16, a surface of the annular protrusion 1311 facing away from the fifth surface 131 may abut against the step surface, and a distance h6 between the image-side surface of the first positioning ledge 112 and the step surface 1412 may be 0.005mm to 0.3mm in a direction parallel to the optical axis of the second barrel 120. By specifically limiting the distance between the image side surface of the first positioning flange 112 and the step surface, the lens assembly 10 can be miniaturized without hindering the adjustment of the first barrel 110 and the second barrel 120 by the distance between the first positioning flange 112 and the step surface 1412. Specifically, the distance h6 between the image-side surface of the first positioning flange 112 and the step surface 1412 in a direction parallel to the optical axis of the second barrel 120 may be 0.1mm, 0.2mm, or the like.
In a third aspect, an embodiment of the present application provides a camera module 1, including any of the lens assemblies 10 described above.
The beneficial effects of the embodiment of the application are that: through being divided into including a plurality of lens barrels with lens barrel assembly 100, and all injectd the chamber that holds that is used for installing lens group on every lens barrel, just so can install the lens of lens assembly 10 in the intracavity that holds of different lens barrels to make the relative adjustment of the lens group in two lens barrels just can be realized to the relative rotation of two lens barrels, can promote lens assembly 10's analytic power and the mode of regulation simple.
In a fourth aspect, an embodiment of the present application provides an electronic device, including the above-mentioned camera module 1. The electronic device may be any device having a function of acquiring an image. For example, the electronic device may be a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, a monitoring device, and the like, and the camera module 1 cooperates with the electronic device to capture and reproduce an image of a target object.
The beneficial effects of the embodiment of the application are that: through being divided into including a plurality of lens barrels with lens barrel assembly 100, and all injectd the chamber that holds that is used for installing lens group on every lens barrel, just so can install the lens of lens assembly 10 in the intracavity that holds of different lens barrels to make the relative adjustment of the lens group in two lens barrels just can be realized to the relative rotation of two lens barrels, can promote lens assembly 10's analytic power and the mode of regulation simple.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (15)
1. A lens barrel assembly, characterized by comprising:
the first lens barrel defines a first accommodating cavity for accommodating the first lens group, and the outer wall surface of the image side end of the first lens barrel is provided with a first positioning flange which extends towards the direction departing from the optical axis of the first lens barrel; and
the second lens barrel defines a second accommodating cavity for arranging a second lens group, a second positioning flange is arranged on the inner wall surface of the object side end of the second lens barrel, the second positioning flange extends towards the direction close to the optical axis of the second lens barrel, and a through hole communicated with the second accommodating cavity is defined inside the second positioning flange;
after the first lens barrel is configured to be assembled with the second lens barrel, the image side end of the first lens barrel is located in the second accommodating cavity, the object side end of the first lens barrel is located outside the second accommodating cavity and located at the object side of the second lens barrel, and the object side surface of the first positioning flange abuts against the image side surface of the second positioning flange, wherein the first lens barrel can rotate around the optical axis of the second lens barrel relative to the second lens barrel.
2. The lens barrel assembly according to claim 1,
the sections of the second positioning flanges are all circular along the direction perpendicular to the optical axis of the second lens barrel;
when the first lens barrel is configured to be assembled with the second lens barrel, the first lens barrel can enter the second accommodating cavity from the image side of the second lens barrel, and the object side end of the first lens barrel can pass through the through hole from the second accommodating cavity.
3. The lens barrel assembly according to claim 1,
the cross sections of the second positioning flanges are all in a circular ring shape along the direction perpendicular to the optical axis of the second lens barrel, the second positioning flanges are provided with first surfaces deviating from the inner wall surface of the object side end of the second lens barrel, the first surfaces are provided with first grooves, and the first grooves penetrate through the object side surfaces of the second positioning flanges and the image side surfaces of the second positioning flanges;
when the first lens barrel is configured to be assembled with the second lens barrel, the image side end of the first lens barrel can pass through the through hole from the object side of the second lens barrel and is located in the second accommodating cavity, and the object side surface of the first positioning flange is abutted to the image side end of the second positioning flange through relative rotation of the first lens barrel and the second lens barrel.
4. The lens barrel assembly according to claim 3,
the section of the first positioning flange is a first section along the direction perpendicular to the optical axis of the first lens barrel, and the first section is in a sector ring shape; the section of the first groove is a second section along the direction perpendicular to the optical axis of the second lens barrel, and the second section is in a fan-ring shape;
wherein the central angle of the first cross section is theta 1, the central angle of the second cross section is theta 2, the outer diameter of the first cross section is R1, the outer diameter of the second cross section is R2, the inner diameter of the second cross section is R2, and theta 1, theta 2, R1, R2 and R2 satisfy the following relational expression:
θ1≤θ2；
r2<R1≤R2。
5. the lens barrel assembly according to claim 4,
the number of the first positioning flanges is multiple, the number of the first grooves is equal to that of the first positioning flanges, and the first grooves and the first positioning flanges are arranged in a one-to-one correspondence manner; or
The number of the first positioning flanges is four, and the four first positioning flanges are distributed on the outer wall surface of the image side end of the first lens barrel; the number of the first grooves is equal to that of the first positioning flanges, and the first grooves are arranged in one-to-one correspondence with the first positioning flanges.
6. The lens barrel assembly according to claim 1,
the first positioning flange is provided with a second surface deviating from the outer wall surface of the image side end of the first lens barrel, and the distance between the second surface and the inner wall surface of the second lens barrel is 0.005 mm-0.1 mm along the direction perpendicular to the optical axis of the first lens barrel;
the second positioning flange is provided with a first surface deviating from the inner wall surface of the object side end of the second lens barrel, and the distance between the first surface and the outer wall surface of the first lens barrel is 0.005 mm-0.1 mm along the direction perpendicular to the optical axis of the second lens barrel.
7. The lens barrel assembly according to claim 1, wherein the first receiving cavity includes a first receiving section for receiving at least one first lens of the first lens group, the first receiving section being located in a second receiving cavity when the first lens barrel is assembled with the second lens barrel.
8. A lens assembly, comprising:
the lens barrel assembly of any one of claims 1 to 7;
the first lens group comprises at least one first lens and is arranged in the first accommodating cavity of the first lens barrel of the lens barrel assembly; and
and the second lens group comprises at least one second lens and is arranged in the second accommodating cavity of the second lens barrel of the lens barrel assembly.
9. The lens assembly of claim 8, wherein the object side surface of the second lens group is a third surface, the lens assembly further comprising:
and the shading sheet is attached to the third surface, the object side surface of the shading sheet is a fourth surface, and the orthographic projections of the outer wall surface of the image side end of the first lens barrel and the inner wall surface of the object side end of the second lens barrel on the fourth surface are both positioned in the fourth surface.
10. The lens assembly of claim 8,
the image side surface of the first lens group is a fifth surface, and the fifth surface is provided with a first connecting structure;
the object side surface of the second lens group is a third surface, a second connecting structure is arranged on the third surface, the first connecting structure is connected with the second connecting structure, and the first connecting structure can rotate around the optical axis of the second lens cone relative to the second connecting structure.
11. The lens assembly of claim 10,
the first connecting structure is an annular bulge arranged on the fifth surface, the annular bulge extends towards the direction far away from the object side surface of the first lens group, and the central axis of the annular bulge is collinear with the optical axis of the first lens cone;
the second connecting structure is an annular groove formed in the third surface, the annular groove is recessed towards the direction close to the image side surface of the second lens group, and the central axis of the annular groove is collinear with the optical axis of the second lens cone.
12. The lens assembly of claim 11,
the edge area of the third surface is recessed to form a step, the step is provided with a step surface facing the fifth surface and a first inner circumferential surface connecting the step surface and the third surface, and the step surface, the first inner circumferential surface and the inner wall surface of the second lens barrel are enclosed to form the annular groove.
13. The lens assembly of claim 12, wherein a surface of the annular protrusion facing away from the fifth surface abuts the step surface, and a distance between an image side surface of the first positioning flange and the step surface is 0.005mm to 0.3mm in a direction parallel to an optical axis of the second barrel.
14. A camera module comprising the lens assembly of any one of claims 8 to 13.
15. An electronic device, comprising the camera module of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669381.3U CN212111941U (en) | 2020-04-27 | 2020-04-27 | Lens cone assembly, lens assembly, camera module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669381.3U CN212111941U (en) | 2020-04-27 | 2020-04-27 | Lens cone assembly, lens assembly, camera module and electronic equipment |
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| CN212111941U true CN212111941U (en) | 2020-12-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114967029A (en) * | 2022-04-22 | 2022-08-30 | 歌尔光学科技有限公司 | Projection lens, projection ray apparatus and virtual reality equipment |
| CN117319781A (en) * | 2023-11-29 | 2023-12-29 | 荣耀终端有限公司 | Camera module and electronic equipment |
-
2020
- 2020-04-27 CN CN202020669381.3U patent/CN212111941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114967029A (en) * | 2022-04-22 | 2022-08-30 | 歌尔光学科技有限公司 | Projection lens, projection ray apparatus and virtual reality equipment |
| CN117319781A (en) * | 2023-11-29 | 2023-12-29 | 荣耀终端有限公司 | Camera module and electronic equipment |
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Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi Jingchao optics Co.,Ltd. Address before: 330096 Jiangxi Nanchang Nanchang hi tech Industrial Development Zone, east of six road, south of Tianxiang Avenue. Patentee before: OFILM TECH Co.,Ltd. |